Foot drop auxiliary rehabilitation exercise equipment

Abstract

The invention belongs to the technical field of medical instruments, and relates to an auxiliary rehabilitation exercise device for foot drop. The device comprises a counterweight seat, a tray and a supporting foot plate, a sinking groove is formed in the counterweight seat, a first rotating shaft is rotatably mounted in the sinking groove, a limiting sleeve is fixed to the top end of the first rotating shaft, a second rotating shaft is elastically and rotatably arranged in the limiting sleeve, and the second rotating shaft is perpendicular to the first rotating shaft; the supporting foot plate is fixedly connected with one end of the second rotating shaft through a first connecting piece; an end face bearing is connected in the sinking groove in an up-down moving mode, the tray is installed on the end face bearing, and a driving assembly for driving the tray to rotate is arranged in the balance weight base. The other end of the second rotating shaft is connected with a sliding ball through a second connecting piece, a supporting block is fixedly installed in the second rotating shaft, and an arc-shaped groove matched with the sliding ball is formed in the supporting block. And the patient can select active exercise and passive exercise according to own conditions, so that the applicability of the exercise equipment is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices and relates to a foot drop auxiliary rehabilitation exercise device. Background Art

[0002] Foot drop, also known as pointed foot or inversion of the foot, is a common movement disorder characterized by the inability of the ankle joint to dorsiflex, which causes the patient to touch the ground with the toes first when walking, forming a special gait. Foot drop not only affects the patient's walking ability, but also leads to many problems such as increased risk of falling, decreased self-confidence, and limited social activities, which seriously affects the patient's quality of life and social participation.

[0003] Rehabilitation is an important part of foot drop treatment, which aims to help patients restore or improve foot function through various methods. However, traditional rehabilitation exercises with the help of rehabilitation therapists have certain limitations, such as limited resources of rehabilitation therapists, high rehabilitation costs, insufficient patient participation, and difficulty in sustaining rehabilitation effects.

[0004] In order to solve the above problems, the present invention provides a foot drop auxiliary rehabilitation exercise equipment. Summary of the invention

[0005] In order to solve the problems existing in the background technology, the present invention provides a foot drop auxiliary rehabilitation exercise equipment.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a foot drop auxiliary rehabilitation exercise equipment, including a counterweight seat, a tray and a foot support board; a sinking groove is opened in the counterweight seat, and a first rotating shaft is rotatably installed in the sinking groove, a limiting sleeve is fixed at the top end of the first rotating shaft, and a second rotating shaft is elastically rotatably arranged in the limiting sleeve, and the second rotating shaft is perpendicular to the first rotating shaft; the foot support board is fixedly connected to one end of the second rotating shaft through a first connecting member; an end face bearing is connected to the sinking groove for up and down movement, the tray is installed on the end face bearing, and a driving component for driving the tray to rotate is arranged in the counterweight seat; the other end of the second rotating shaft is connected to a sliding ball through a second connecting member, and a support block is fixedly installed in the second rotating shaft, and an arc groove cooperating with the sliding ball is opened on the support block.

[0007] Furthermore, the first connecting member includes a connecting plate and a supporting rod, one end of the connecting plate is fixedly connected to the second rotating shaft, the other end of the connecting plate is fixedly connected to one end of the supporting rod, and the foot plate is fixed on the supporting rod.

[0008] Furthermore, the foot support plate is provided with straps for fixing the patient's feet.

[0009] Furthermore, the second connecting member includes a limiting column and a bent rod; the limiting column is fixedly connected to the second rotating shaft, one end of the bent rod is fixedly connected to the limiting column, and the other end of the bent rod is fixedly connected to the sliding ball.

[0010] Furthermore, the bent rod is in a Z shape.

[0011] Furthermore, a avoidance box is fixedly connected to one side of the limit sleeve, the avoidance box is communicated with the limit sleeve, a second clamping plate is elastically limited and slidably arranged in the avoidance box, and a second tooth groove cooperating with the second clamping plate is provided on the second rotating shaft; a second electromagnet is fixedly arranged in the avoidance box, a second magnet is arranged on the side of the second clamping plate close to the second electromagnet, and the second magnet and the second electromagnet repel each other.

[0012] Furthermore, a through hole is provided on the bottom wall of the sinking groove, the lower end of the first rotating shaft extends into the through hole, an avoidance groove is provided on the side wall of the through hole, a first clamping plate is elastically and slidably arranged in the avoidance groove, and a first tooth groove cooperating with the first clamping plate is provided on the first rotating shaft; a first electromagnet is fixed in the avoidance groove, a first magnet is fixedly connected to a side of the first clamping plate close to the first electromagnet, and the first electromagnet cooperates with the first magnet by magnetic attraction.

[0013] Furthermore, the driving assembly includes a motor; the motor is fixed on the bottom wall of the sinking trough, the motor shaft of the motor is vertically upward and fixedly connected with a gear; the bottom of the tray is fixedly connected with a gear ring, and the gear ring is meshed with the gear.

[0014] Furthermore, the thickness of the gear ring is greater than the thickness of the gear.

[0015] Compared with the prior art, the present invention has the following beneficial effects: patients can choose active exercise and passive exercise according to their own conditions, thereby improving the applicability of the exercise equipment.

[0016] When patients choose the active exercise mode, they are required to actively exert force and continue to exert force to complete the exercise, which will accelerate the patient's recovery process and improve recovery efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the counterweight seat in the present invention; Figure 3 The present invention Figure 2 A magnified view of part A; Figure 4 The present invention Figure 2 A magnified view of part B; Figure 5 It is a schematic diagram of the structure of the driving component in the present invention; Figure 6 It is a structural schematic diagram of the support block in the present invention; Figure 7 It is a structural schematic diagram of the second rotating shaft in the present invention; Figure 8 It is a structural schematic diagram of the avoidance box in the present invention.

[0018] In the figure: 1. counterweight seat; 2. sinking groove; 3. first rotating shaft; 4. first tooth groove; 5. avoidance groove; 6. first clamping plate; 7. first spring; 8. first electromagnet; 9. limit sleeve; 10. avoidance box; 11. second clamping plate; 12. second spring; 13. second electromagnet; 14. second rotating shaft; 15. second tooth groove; 16. limit column; 17. bending rod; 18. sliding ball; 19. connecting plate; 20. support rod; 21. foot board; 22. electric telescopic rod; 23. end bearing; 24. tray; 25. round hole; 26. support block; 27. arc groove; 28. gear ring; 29. ​​motor; 30. gear; 31. arc chamfer. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1: Figure 1-Figure 8 As shown, the technical solution adopted by the present invention is as follows: a foot drop auxiliary rehabilitation exercise equipment includes a weight seat 1, a tray 24 and a foot support plate 21. A sinking groove 2 is provided in the weight seat 1, and a through hole is provided on the bottom wall of the sinking groove 2. A first rotating shaft 3 is elastically rotatably provided in the sinking groove 2, and the first rotating shaft 3 is vertically arranged, and the lower end of the first rotating shaft 3 extends into the through hole. Two avoidance grooves 5 are symmetrically provided on the side wall of the sinking groove 2, and a first clamping plate 6 is provided in each avoidance groove 5 for limited sliding, and a first spring 7 is fixedly connected between the first clamping plate 6 and the side wall of the avoidance groove 5. A first electromagnet 8 is fixedly connected in the avoidance groove 5, and a first magnet is fixedly connected to the side of the first clamping plate 6 close to the first electromagnet 8, and the first magnet and the first electromagnet 8 are magnetically matched. A first tooth groove 4 that matches the first clamping plate 6 is provided on the first rotating shaft 3. When the first electromagnet 8 is energized, the first electromagnet 8 generates an attractive force on the first magnet, so that the first clamping plate 6 is separated from the first tooth groove 4. When the first electromagnet 8 is powered off, under the action of the first spring 7, the first clamping plate 6 is pressed against the first shaft 3, and the first clamping plate 6 is engaged with the first tooth groove 4, thereby limiting the first shaft 3 to prevent the first shaft 3 from rotating accidentally.

[0021] The tray 24 is rotatably arranged in the sinking tank 2. An electric telescopic rod 22 is fixedly installed on the bottom wall of the sinking tank 2, and the output end of the electric telescopic rod 22 is vertically upward. The output end of the electric telescopic rod 22 is fixedly connected to the end bearing 23. In order to stably support the end bearing 23, multiple electric telescopic rods 22 are provided. The tray 24 is installed on the upper end surface of the end bearing 23. The electric telescopic rod 22 is extended and retracted, and the tray 24 is driven to move up and down through the end bearing 23. A circular hole 25 is opened on the tray 24, and the first rotating shaft 3 movably passes through the circular hole 25. The first rotating shaft 3 and the tray 24 are coaxially arranged.

[0022] The counterweight seat 1 is provided with a driving assembly for driving the tray 24 to rotate. The driving assembly includes a motor 29, which is fixed on the bottom wall of the sinking tank 2, and the motor shaft of the motor 29 is vertically upward. The motor shaft of the motor 29 is coaxially fixedly connected with a gear 30. A gear ring 28 is coaxially fixedly connected to the lower end surface of the tray 24, and the gear ring 28 is meshed with the motor 29. The motor 29 drives the tray 24 to rotate through the gear 30 and the gear ring 28. The thickness of the gear ring 28 is greater than the thickness of the gear 30.

[0023] A limiting sleeve 9 is fixedly installed at the top of the first rotating shaft 3, and the limiting sleeve 9 is arranged horizontally. A second rotating shaft 14 is elastically rotatably installed in the limiting sleeve 9, and the axis of the second rotating shaft 14 is perpendicular to the axis of the first rotating shaft 3. Specifically, a torsion spring is sleeved on the second rotating shaft 14, and the torsion spring is fixedly connected between the second rotating shaft 14 and the limiting sleeve 9.

[0024] A side of the limiting sleeve 9 is fixedly connected with an avoidance box 10, and the avoidance box 10 is connected with the limiting sleeve 9. A second clamping plate 11 is elastically slidably provided in the avoidance box 10, and a second spring 12 is fixedly connected between the second clamping plate 11 and the side wall of the avoidance box 10. A second electromagnet 13 is fixedly connected in the avoidance box 10, and a second magnet is fixedly connected to the side of the second clamping plate 11 close to the second electromagnet 13, and the second magnet and the second electromagnet 13 repel each other. A second tooth groove 15 is provided on the second rotating shaft 14, and the second tooth groove 15 cooperates with the second clamping plate 11. When the second electromagnet 13 is energized, the second electromagnet 13 generates a thrust on the second clamping plate 11, so that the second clamping plate 11 moves close to the second rotating shaft 14 and meshes with the second tooth groove 15, thereby preventing the second rotating shaft 14 from rotating relative to the limiting sleeve 9.

[0025] One end of the second rotating shaft 14 is fixedly connected to the foot support board 21 through the first connecting member. Specifically, the first connecting member includes a connecting plate 19 and a support rod 20. The connecting plate 19 is L-shaped, one end of the connecting plate 19 is fixedly connected to the second rotating shaft 14, the support rod 20 is fixedly connected to the connecting plate 19, and the foot support board 21 is fixedly connected to the support rod 20. The foot support board 21 is provided with a strap for fixing the patient's foot, and the strap is provided with Velcro. When the patient places the foot on the foot support board 21, the support rod 20 corresponds to the heel of the patient.

[0026] The other end of the second rotating shaft 14 is connected to a sliding ball 18 through a second connecting member. The second connecting member includes a limiting column 16 and a bent rod 17. The limiting column 16 is fixedly connected to the second rotating shaft 14. The bent rod 17 is Z-shaped, one end of the bent rod 17 is fixedly connected to the limiting column 16, and the other end of the bent rod 17 is fixedly connected to the sliding ball 18.

[0027] A support block 26 is fixedly installed in the tray 24, and an arc groove 27 is provided on the support block 26. The sliding ball 18 slides in cooperation with the arc groove 27. An arc chamfer 31 is provided at one end of the arc groove 27 close to the first rotating shaft 3. The arc chamfer 31 cooperates with the bent rod 17. The extension line of the arc groove 27 intersects with the axis of the first tooth groove 4.

[0028] Working principle: Initially, the electric telescopic rod 22 is in a retracted state, one end of the curved rod 17 provided with the sliding ball 18 is tilted downward, and the sliding ball 18 is pressed against the arc groove 27.

[0029] When in use, the patient can place the feet on the foot support board 21 and fix the feet on the foot support board 21 by straps and Velcro.

[0030] When the passive training mode of dorsiflexion and extension is needed, the first electromagnet 8 is powered off, and the first clamping plate 6 is meshed with the first rotating shaft 3. The second electromagnet 13 is powered off, and under the action of the second spring 12, the second clamping plate 11 is separated from the second rotating shaft 14. Then the electric telescopic rod 22 is started, the electric telescopic rod 22 is extended, the tray 24 moves upward, the support block 26 moves upward, the sliding ball 18 moves upward, and the sliding ball 18 drives the limit column 16 to rotate through the bent rod 17, and then the second rotating shaft 14 rotates to overcome the elastic force of the torsion spring, and the connecting plate 19, the support rod 20 and the foot support plate 21 rotate around the axis of the second rotating shaft 14, and the foot support plate 21 drives the patient's foot to perform dorsiflexion exercise.

[0031] When the support block 26 drives the sliding ball 18 to move upward, the curved rod 17 rotates around the second rotating shaft 14, and the sliding ball 18 moves in the arc groove 27 toward the axis of the tray 24. When the curved rod 17 is in a horizontal state, as the tray 24 continues to move upward, the curved rod 17 contacts the arc chamfer 31, and the support block 26 pushes the curved rod 17 to rotate around the second rotating shaft 14 through the arc chamfer 31, and the second rotating shaft 14 continues to rotate, and the foot support board 21 continues to rotate around the second rotating shaft 14, and the patient's instep is further stretched.

[0032] When the tray 24 moves to the upper limit, the electric telescopic rod 22 shrinks. The tray 24 moves downward, and under the action of the torsion spring, the second shaft 14 rotates in the opposite direction, and the connecting plate 19, the support rod 20, the foot support plate 21, the limit column 16, the bending rod 17, and the sliding ball 18 rotate accordingly. The patient's foot performs dorsiflexion exercise. Accordingly, the reciprocating extension and contraction of the electric telescopic rod 22 drives the patient to complete the dorsiflexion exercise, helping the patient to restore the foot function and improve the patient's foot drop condition.

[0033] When the patient needs to use the inversion and eversion training mode, the second electromagnet 13 is energized and the first electromagnet 8 is energized. After the second electromagnet 13 is energized, the second clamping plate 11 is meshed with the second tooth groove 15 to limit the second rotating shaft 14. After the first electromagnet 8 is energized, the first clamping plate 6 is separated from the first rotating shaft 3. The motor 29 is started, the tray 24 rotates, the support block 26 rotates, the support block 26 drives the sliding ball 18 to rotate around the first rotating shaft 3 through the side wall of the arc groove 27, the bending rod 17 and the limiting column 16 rotate around the first rotating shaft 3, the second rotating shaft 14, the limiting sleeve 9 and the first rotating shaft 3 rotate, and the foot support plate 21 rotates around the axis of the first rotating shaft 3, and the patient's foot is turned over. By rotating the motor 29 forward and reversely, the foot support plate 21 swings back and forth, thereby driving the patient's foot to complete the inversion and eversion training.

[0034] If the patient needs to use the active training mode, both the second electromagnet 13 and the first electromagnet 8 are in the power-off state. After the second electromagnet 13 is powered off, under the action of the second spring 12, the second clamping plate 11 is separated from the second rotating shaft 14. After the first electromagnet 8 is powered off, under the action of the first spring 7, the first clamping plate 6 is pressed against the first rotating shaft 3, and the first clamping plate 6 is engaged with the first tooth groove 4, and the first rotating shaft 3 cannot rotate freely. The patient presses down on the toes, so that the second rotating shaft 14 overcomes the elastic force of the torsion spring and rotates, and the toes rotate downward, and the foot performs dorsiflexion training. Then the patient gradually reduces the downward pressure of the toes on the foot support plate 21, and under the action of the torsion spring, the second rotating shaft 14 returns to its original position and rotates, and the patient's foot performs dorsiflexion training.

[0035] Embodiment 2: This embodiment is a further improvement made on the basis of embodiment 1. This embodiment also includes a controller and an angle sensor, and the angle sensor, the first electromagnet 8, the second electromagnet 13, the electric telescopic rod 22 and the motor 29 are all electrically connected to the controller. There are two angle sensors, which are respectively installed on the first rotating shaft 3 and the second rotating shaft 14. The angle sensor is used to measure the rotation angle of the first rotating shaft 3 or the second rotating shaft 14, and then the swing amplitude of the patient's foot can be measured to obtain the training intensity. The value of the angle sensor can be preset by the controller, and then the training intensity can be preset. As the first rotating shaft 3 or the second rotating shaft 14 rotates, the angle sensor transmits the measured value to the controller, and the controller controls the movement of the electric telescopic rod 22 or the motor 29 according to the received measured value of the angle sensor, and then adjusts the swing amplitude of the foot support board 21. The controller is electrically connected to a timing module and a storage module. The functions used by the patient for each training, the duration of the training, the intensity of the training, etc. can be recorded. By recording the working time of the electric telescopic rod 22, the time when the patient performs the back flexion and back extension training mode can be obtained, and by recording the running time of the motor 29, the time when the patient performs the inversion and eversion training can be obtained. Therapists can provide customized feedback and suggestions based on the patient's training records to help patients and therapists understand the progress of rehabilitation.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A foot drop auxiliary rehabilitation exercise equipment, characterized in that: The invention comprises a counterweight seat (1), a tray (24) and a foot support plate (21); a sinking groove (2) is provided in the counterweight seat (1), a first rotating shaft (3) is rotatably installed in the sinking groove (2), a limiting sleeve (9) is fixed at the top end of the first rotating shaft (3), a second rotating shaft (14) is elastically rotatably arranged in the limiting sleeve (9), and the second rotating shaft (14) is perpendicular to the first rotating shaft (3); the foot support plate (21) is fixedly connected to one end of the second rotating shaft (14) through a first connecting member; an end face bearing (23) is connected in the sinking groove (2) so as to move up and down, the tray (24) is installed on the end face bearing (23), and a driving component for driving the tray (24) to rotate is arranged in the counterweight seat (1); the other end of the second rotating shaft (14) is connected to a sliding ball (18) through a second connecting member, a support block (26) is fixedly installed in the second rotating shaft (14), and an arc groove (27) cooperating with the sliding ball (18) is provided on the support block (26).

2. The foot drop auxiliary rehabilitation exercise equipment according to claim 1, characterized in that: The first connecting member comprises a connecting plate (19) and a supporting rod (20), one end of the connecting plate (19) is fixedly connected to the second rotating shaft (14), the other end of the connecting plate (19) is fixedly connected to one end of the supporting rod (20), and the supporting plate (21) is fixed on the supporting rod (20).

3. The foot drop auxiliary rehabilitation exercise equipment according to claim 1, characterized in that: The foot support plate (21) is provided with a strap for fixing the patient's feet.

4. The foot drop auxiliary rehabilitation exercise equipment according to claim 1, characterized in that: The second connecting member comprises a limiting column (16) and a bent rod (17); the limiting column (16) is fixedly connected to the second rotating shaft (14), one end of the bent rod (17) is fixedly connected to the limiting column (16), and the other end of the bent rod (17) is fixedly connected to the sliding ball (18).

5. The foot drop auxiliary rehabilitation exercise equipment according to claim 4, characterized in that: The bent rod (17) is in a Z-shape.

6. The foot drop auxiliary rehabilitation exercise equipment according to claim 1, characterized in that: A avoidance box (10) is fixedly connected to one side of the limit sleeve (9), the avoidance box (10) is communicated with the limit sleeve (9), a second clamping plate (11) is elastically limited and slidably arranged in the avoidance box (10), and a second tooth groove (15) cooperating with the second clamping plate (11) is provided on the second rotating shaft (14); a second electromagnet (13) is fixedly arranged in the avoidance box (10), a second magnet is arranged on one side of the second clamping plate (11) close to the second electromagnet (13), and the second magnet and the second electromagnet (13) are repelled and matched.

7. The foot drop auxiliary rehabilitation exercise equipment according to claim 1, characterized in that: A through hole is provided on the bottom wall of the sinking groove (2), the lower end of the first rotating shaft (3) extends into the through hole, an avoidance groove (5) is provided on the side wall of the through hole, a first clamping plate (6) is elastically slidably arranged in the avoidance groove (5), and a first tooth groove (4) cooperating with the first clamping plate (6) is provided on the first rotating shaft (3); a first electromagnet (8) is fixed in the avoidance groove (5), a first magnet is fixedly connected to a side of the first clamping plate (6) close to the first electromagnet (8), and the first electromagnet (8) cooperates with the first magnet by magnetic attraction.

8. A foot drop auxiliary rehabilitation exercise equipment according to any one of claims 1 to 7, characterized in that: The driving assembly comprises a motor (29); the motor (29) is fixed on the bottom wall of the sink trough (2); the motor shaft of the motor (29) is vertically upward and is fixedly connected to a gear (30); a gear ring (28) is fixedly connected to the bottom of the tray (24); the gear ring (28) and the gear (30) are meshed.

9. The foot drop auxiliary rehabilitation exercise equipment according to claim 8, characterized in that: The thickness of the gear ring (28) is greater than the thickness of the gear (30).

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